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CVE-2016-0818

5.9 · MEDIUM

The caching functionality in the TrustManagerImpl class in TrustManagerImpl.java in Conscrypt in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49H, and 6.x before 2016-03-01 mishandles the distinct…

Published Mar 12, 2016CWE-254EPSS 0.27%

Overview

CVE-2016-0818 is a medium-severity vulnerability. It was published on March 12, 2016 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The caching functionality in the TrustManagerImpl class in TrustManagerImpl.java in Conscrypt in Android 4.x before 4.4.4, 5.x before 5.1.1 LMY49H, and 6.x before 2016-03-01 mishandles the distinction between an intermediate CA and a trusted root CA, which allows man-in-the-middle attackers to spoof servers by leveraging access to an intermediate CA to issue a certificate, aka internal bug 26232830.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsource.android.com/security/bulletin/2016-03-01.htmlRefwww.securityfocus.com/bid/84245Refandroid.googlesource.com/platform/external/conscrypt/+/4c9f9c2201116acf790fca25af43995d29980ee0Refandroid.googlesource.com/platform/external/conscrypt/+/c4ab1b959280413fb11bf4fd7f6b4c2ba38bd779Refsource.android.com/security/bulletin/2016-03-01.htmlRefwww.securityfocus.com/bid/84245Refandroid.googlesource.com/platform/external/conscrypt/+/4c9f9c2201116acf790fca25af43995d29980ee0Refandroid.googlesource.com/platform/external/conscrypt/+/c4ab1b959280413fb11bf4fd7f6b4c2ba38bd779

How CyberStrike helps

Frequently asked questions

What is CVE-2016-0818?

CVE-2016-0818 is a medium-severity vulnerability. It was published on March 12, 2016 and has a CVSS 3.0 base score of 5.9 (MEDIUM).

How severe is CVE-2016-0818?

This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2016-0818?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-0818?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-0818 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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